Email Services - Frequently Asked Questions:
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Why are PINKY and CLYDE asking me to login? It's usually KITE.
PINKY and CLYDE are domain controllers for the KITE domain. Neither should ask you to authenticate, but it happens sometimes. ISC is tracking the issue and looking into the cause.
If this happens to you, simply correct the username to KITE\yourPennName and input your password to authenticate.
Information Systems and Computing, University of Pennsylvania